Seal



FIG. 1 is a front and right side perspective view of a seal;

FIG. 2 is a rear and left side perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevational view thereof, the left side elevational view being a mirror image of the right side elevational view shown;

FIG. 6 is a front elevational view thereof;

FIG. 7 is a rear elevational view thereof; and,

FIG. 8 is a cross-sectional view thereof, from line 8-8 in FIG. 6.

The broken lines depict portions of the seal that form no part of the claimed design. 

CLAIM The ornamental design for a seal, as shown and described. 